Overview
The Siemens SIRIUS 3RT2028-2AB04 Power Contactor is a high-performance, durable switching device designed for controlling electric motors and resistive loads. Part of the trusted Siemens SIRIUS modular system, this 3-pole contactor is built for applications requiring high operational reliability and compact design, meeting the new efficiency standards of AC-3e/AC-3. Its removable auxiliary switch block and spring-loaded terminals ensure quick installation, secure connections, and simplified maintenance in industrial control panels and automation systems.
Key Features & Function
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Rated Current: 38 A for AC-3 / AC-3e applications
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Rated Power: 18.5 kW at 400 V
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Poles: 3-pole contactor for versatile applications
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Coil Voltage: 24 V AC, 50 Hz
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Auxiliary Contacts: 2 NO + 2 NC for flexible control options
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Terminal Type: Spring-loaded for secure, reliable connections
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Size: S0 compact design
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Additional Functionality: Removable auxiliary switch for easy replacement
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Durable Construction: Designed for long-lasting performance in industrial environments
Benefit
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Reliable Motor Control: Handles high AC loads efficiently.
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Easy Installation: Spring-loaded terminals reduce wiring effort.
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Flexible Automation: 2 NO + 2 NC auxiliary contacts enable advanced control schemes.
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Maintenance Friendly: Removable auxiliary switch allows quick replacement without downtime.
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Compact Design: Saves space in control panels while maintaining performance.
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